NDLI: Adaptive threshold enhanced filter banks for wireless microphone detection in IEEE 802.22 WRAN

Content Provider	IEEE Xplore Digital Library
Author	Yun Cui Zhifeng Zhao Honggang Zhang
Copyright Year	2010
Description	Author affiliation: York-Zhejiang Lab on Cognitive Radio and Green Communications, Zhejiang University, Hangzhou 310027, China (Yun Cui; Zhifeng Zhao; Honggang Zhang)
Abstract	IEEE 802.22 is the first worldwide Wireless Regional Area Networks (WRAN) standard based on cognitive radios (CR). In IEEE 802.22 WRAN, if a wireless microphone appears in any TV channel, the whole channel should be cleaned. 802.22 WRAN devices probably need to fractionally use the first adjacent channel for improving spectrum efficiency while ensuring no harmful interference is caused to the wireless microphone nearby. To determine the appropriate portion of the TV channel that WRAN can utilize, we firstly need to know the frequency location of wireless microphone. In this paper, we propose a two step DFT filter bank (TS-DFTFB) enhanced with an adaptive threshold method to detect the wireless microphone (WM). Comparing with conventional single step DFTFB, the TS-DFTFB method has low complexity while the detection precision is equal to single step DFTFB under the same condition. And with an adaptive method, the threshold can be kept very close to the noise power, which can increase the detection probability especially in the condition of low SNR.
Starting Page	2727
Ending Page	2732
File Size	742747
Page Count	6
File Format	PDF
ISBN	9781424480173
e-ISBN	9781424480166
DOI	10.1109/PIMRC.2010.5671805
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-26
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Filter bank Noise TV Complexity theory Wireless communication Prototypes Bandwidth adaptive threshold IEEE 802.22 WRAN spectrum sensing filter banks
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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